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net/mlx5: Avoid printing health buffer when firmware is unavailable

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Use firmware version field as an indication to health buffer's sanity.
When firmware version is 0xFFFFFFFF, deduce that firmware is unavailable
and avoid printing the health buffer to dmesg as it doesn't provide
debug info.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Aya Levin 2021-11-09 15:44:58 +02:00 committed by Saeed Mahameed
parent aef0f8c67d
commit f28a14c1dc
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/health.c
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@ -420,6 +420,11 @@ static void print_health_info(struct mlx5_core_dev *dev)
if (!ioread8(&h->synd))
return;
if (ioread32be(&h->fw_ver) == 0xFFFFFFFF) {
mlx5_log(dev, LOGLEVEL_ERR, "PCI slot is unavailable\n");
return;
}
rfr_severity = ioread8(&h->rfr_severity);
severity = mlx5_health_get_severity(rfr_severity);
mlx5_log(dev, severity, "Health issue observed, %s, severity(%d) %s:\n",